package chaper08;

public class Bank {
        private String accountNumber;
        private double balance;
        public void setAccountNumber(String accountNumber){
            this.accountNumber = accountNumber;
        }
        public String getAccountNumber(){
            return accountNumber;
        }
        public void setBalance(double balance){
            if (balance < 0){
                System.out.println("输入金额有误！");
            }else{
                this.balance = balance;
            }
        }
        public double getBalance(){
            return balance;
        }
        public void broadcast(String accountNumber,double balance){
            System.out.println("账户"+accountNumber+"的余额为"+balance+"元");
        }
    }
}
